The difference between Grave's disease and Hashimoto's disease is that one is an overactive thyroid and the other is an under active thyroid and both are autoimmune related. Grave's is over active thyroid and hashimoto's is under active thyroid. Hashimoto's is more common with people with diabetes. There is often a trifecta of low thyroid, diabetes and Celiac disease (gluten intolerance).
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